The seamless transition promised by Frontier Communications Corp. as it moved its U-verse, Internet and broadband customers from AT&T has failed to materialize.

Customers complained that Internet connections were dropped while others could not access Frontier On-Demand, the video on-demand service because AT&T deleted its library of 10,000 on-demand movies before it closed the Frontier deal.

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Other customers said their Turner Classic Movies channel went out of service.

The company said service worked well for 99 percent of customers. Paul Quick, senior vice president and general manager of Frontier's Connecticut operations, said no statewide issues were related to the conversion of data, phone and TV customers.

He said some customers experienced "intermittent Internet issues."

The company promised in mailers to AT&T customers a "seamless transition" to its services before the $2 billion acquisition.